Abstract: An electronic device includes a housing and a strain sensor group attached on a wall of the housing. The strain sensor group includes at least one strain sensor each configured to detect deformation of the wall in a single direction. When a user presses the housing, the strain sensor group detects deformation of the wall and generates a detection signal indicating direction and magnitude of deformation of the wall. At least one analog-to-digital converter converts the detection signal into a digital signal, and a controller triggers a first event in the electronic device based on the digital signal.

Abstract: A wireless wearable device, including a housing, a PCB located inside the housing, and an antenna module connected to the PCB. The antenna module is configured to transmit and receive a wireless signal, and includes a first electrode. A part of a body of a user and the first electrode together serve as an antenna for the wireless signal. A total length of the first electrode can be lower than a quarter of a wavelength applied in wireless communication. The user does not need to perform an intentional touch or grip due to a constant contact in wearing. Miniaturization of the whole device is achieved while ensuring good quality of wireless communication.

Abstract: A wireless wearable device, including a housing, a PCB located inside the housing, and an antenna module connected to the PCB. The antenna module is configured to transmit and receive a wireless signal, and includes a first electrode, of which a portion is located at a surface of the housing. The portion of the first electrode keeps in contact with a skin of a user when the wireless wearable device is worn by the user. A total length of the first electrode can be lower a quarter of a wavelength applied in wireless communication. The user does not need to perform an intentional touch or grip due to a constant contact in wearing. A metal housing can be applied without screening transmitted and received signals. Miniaturization of the whole device is achieved while ensuring good quality of wireless communication.

Abstract: An electronic device includes a housing and a strain sensor group attached on a wall of the housing. The strain sensor group includes at least one strain sensor each configured to detect deformation of the wall in a single direction. When a user presses the housing, the strain sensor group detects deformation of the wall and generates a detection signal indicating direction and magnitude of deformation of the wall. At least one analog-to-digital converter converts the detection signal into a digital signal, and a controller triggers a first event in the electronic device based on the digital signal.

Abstract: An antenna is provided. The antenna includes a metal plate, wherein the metal plate is at least a part of a housing of an earbud, the metal plate is configured to be electrically coupled to a feeding terminal and a grounding terminal on a PCB, and the PCB is accommodated in the earbud. The present disclosure further provides a wireless earbud including a housing, and a part of the housing constitutes an antenna component to act as an antenna radiator of the wireless earbud. The present disclosure further provides an electronic device including a housing, wherein the housing comprises a sole metal plate, and the sole metal plate constitutes an antenna component to act as an antenna radiator of the electronic device.

Abstract: A wireless communication module comprising including a first transmission bandpass filter that takes a first transmit frequency band as a passband; a second transmission bandpass filter that takes a second transmit frequency band as a passband; a first reception bandpass filter that takes a first receive frequency band as a passband; a second reception bandpass filter that takes a second receive frequency band as a passband; and a plurality of switches, each switch connected to a single one of the bandpass filters.

Abstract: An electronic device including a first reception band pass filter having a first reception frequency set as a passband; a second reception band pass filter having a second reception frequency set as a passband; a first matching circuit having a first end connected to an antenna terminal; a first switch having a first end connected to a second end of the first matching circuit: a second switch having a first end connected to the second end of the first matching circuit; a second matching circuit connected between a second end of the first switch and the first reception band pass filter; and a third matching circuit connected between a second end of the second switch and the second reception band pass filter, wherein at least one of the first, second, and third matching circuits is a variable matching circuit having a controllable matching constant.

Abstract: An electronic device including a first reception band pass filter having a first reception frequency set as a passband; a second reception band pass filter having a second reception frequency set as a passband; a first matching circuit having a first end connected to an antenna terminal; a first switch having a first end connected to a second end of the first matching circuit: a second switch having a first end connected to the second end of the first matching circuit; a second matching circuit connected between a second end of the first switch and the first reception band pass filter; and a third matching circuit connected between a second end of the second switch and the second reception band pass filter, wherein at least one of the first, second, and third matching circuits is a variable matching circuit having a controllable matching constant.

Abstract: A wireless communication module comprising including a first transmission bandpass filter that takes a first transmit frequency band as a passband; a second transmission bandpass filter that takes a second transmit frequency band as a passband; a first reception bandpass filter that takes a first receive frequency band as a passband; a second reception bandpass filter that takes a second receive frequency band as a passband; and a plurality of switches, each switch connected to a single one of the bandpass filters

Abstract: Disclosed is a folded dipole antenna device which is of an unbalanced feed type and includes an antenna element of approximately plate-like loop structure, connected to an antenna feed point and an antenna ground provided on a base plate. In the folded dipole antenna device, the antenna element of loop structure includes a pair of first element sections which extend approximately parallel to the base plate, a second element section formed by merging element sections that are folded back from both ends of the first element sections and extend approximately parallel to the first element sections, and a third element section which extends from a folded top part of the second element section toward the first element sections and an end part thereof is close to the first element sections.

Abstract: A wireless communication device includes a housing including a first exterior portion and a second exterior portion defining a space therebetween for mounting electronic circuitry within the housing. The second exterior portion of the housing includes a conductive layer having a first end and a second end opposite the first end, and a printed wiring board within the housing. The printed wiring board includes a ground plane and is spaced apart from the conductive layer. An antenna feed element electrically couples a lead on the printed wiring board to the conductive layer at a point that is displaced from the first end of the conductive layer towards a center of the conductive layer, and a ground connection electrically couples the conductive layer to the ground plane of the printed circuit board. The conductive layer may provide a conductive outer cover of the device.

Abstract: A slit (15) is formed between a feed point and GND point of an inverted-F antenna to make the points electrically distant from each other, and at least three antenna elements (14a, 14b, and 14c) are formed. The at least three antenna elements (14a, 14b, and 14c) generate at least three resonance points. An antenna radiating plate (3) projects outwardly so that at least a major part thereof does not face a ground plate (4). Therefore, a multi-band antenna device capable of achieving a wider bandwidth without using a parasitic element, and a communication terminal apparatus are provided.

Abstract: An antenna system includes a folded loop radiator including a first loop portion conforming to a major surface of a planar substrate and an opposing second loop portion spaced apart from the planar substrate and including first and second ends electrically coupled to respective first and second ends of the first loop portion. The first and second loop portions may be disposed on the same side of the substrate or on opposite sides of the substrate.

Abstract: A method for driving an antenna of a mobile device, and a mobile device comprising an antenna, a plurality of antenna matching circuits, a selecting unit and a processing unit are described.

Abstract: There is provided an antenna device which includes: a loop antenna connected at one end to a feed point and connected at the other end to ground, and provided to correspond to a first frequency band; and at least one stub antenna provided in the form of extending a part of the loop antenna and provided to correspond to a second frequency band overlapping with a partial frequency band of the first frequency band to which the loop antenna corresponds.

Abstract: Disclosed is a folded dipole antenna device which is of an unbalanced feed type and includes an antenna element of approximately plate-like loop structure, connected to an antenna feed point and an antenna ground provided on a base plate. In the folded dipole antenna device, the antenna element of loop structure includes a pair of first element sections which extend approximately parallel to the base plate, a second element section formed by merging element sections that are folded back from both ends of the first element sections and extend approximately parallel to the first element sections, and a third element section which extends from a folded top part of the second element section toward the first element sections and an end part thereof is close to the first element sections.

Abstract: Disclosed is a folded dipole antenna device which is of an unbalanced feed type and includes an antenna element of approximately plate-like loop structure, connected to an antenna feed point and an antenna ground provided on a base plate. In the folded dipole antenna device, the antenna element of loop structure includes a pair of first element sections which extend approximately parallel to the base plate, a second element section formed by merging element sections that are folded back from both ends of the first element sections and extend approximately parallel to the first element sections, and a third element section which extends from a folded top part of the second element section toward the first element sections and an end part thereof is close to the first element sections.

Abstract: A slit (15) is formed between a feed point and GND point of an inverted-F antenna to make the points electrically distant from each other, and at least three antenna elements (14a, 14b, and 14c) are formed. The at least three antenna elements (14a, 14b, and 14c) generate at least three resonance points. An antenna radiating plate (3) projects outwardly so that at least a major part thereof does not face a ground plate (4). Therefore, a multi-band antenna device capable of achieving a wider bandwidth without using a parasitic element, and a communication terminal apparatus are provided.

Abstract: There is provided an antenna device which has an antenna element having a predetermined resonant frequency characteristic; and support means for supporting said antenna element. In the antenna device, the support means has at least three electrical connection holes for providing electrical connection to the antenna element, and one desired electrical connection hole from among the electrical connection holes is connected to a feed point, and one desired electrical connection hole from among the electrical connection holes except the electrical connection hole connected to the feed point being connected to ground so that the antenna element is adjustable in resonant frequency characteristic.

Abstract: Disclosed is a folded dipole antenna device which is of an unbalanced feed type and includes an antenna element of approximately plate-like loop structure, connected to an antenna feed point and an antenna ground provided on a base plate. In the folded dipole antenna device, the antenna element of loop structure includes a pair of first element sections which extend approximately parallel to the base plate, a second element section formed by merging element sections that are folded back from both ends of the first element sections and extend approximately parallel to the first element sections, and a third element section which extends from a folded top part of the second element section toward the first element sections and an end part thereof is close to the first element sections.